Date: Tue, 26 Mar 2002 23:41:26 +0100 From: "Johan Beikes" <j.beikesnopsamdoo.nl> Subject: Re: 1990 900s will not start
As you describe it, i assume your car has the Bosch K-jetronic injection system. It seems that your mixture adjustment is way out. I had the same pronblem with my 900 T8 and following the repair manual instructions by setting a base adjustment, didn't work at all. What i then did was turning the mixture screw (located between the air-intake and the mixture control unit) fully anti-clockwise (lean mixture) and then start turning it clockwise by half a turn. After each half a turn, i started the engine, until i hit the point where the engine would run, although very rough. From there i only applied one sixth of a turn (be careful, the adjustment is VERY sensitive). By doing so, i managed to get a smoothly running engine again. Before you start this procedure, make sure that you feel no resistance, when lifting the airflow sensor plate. The slightest resistance is already causing problems. If so, adjust the airflow sensorplate to the centre and see to it that the plunger in the mixture control unit is free from resistance (clean it with petrol, if necessary). I hope this helps. Good luck. Johan Jared Talarico <Marsh.hawknopsamzon.net> schreef in berichtnieuws 8YOn8.5329$n%1.1042nopsamdc03.gnilink.net... > We bought a used 1990 900 s [non turbo] with 177,000 miles. I have had to > replace the trans. the car ran great for one day. Then the car died and I > replaced the fuel filter. It then ran rough and the injector connections > were corroded so I cleaned them up. It then ran good for about one month. > It gets lousy gas mileage [13 mpg ] and seems to be running rich...heavy > carbon build up on exhaust and spark plugs...so I was going to replace the > O2 sensor [on the advice of people in a forum which I described the gas > problem to]. Before I could install the sensor the car stopped running > again. I went ahead and replaced the sensor but still will not start. It > turns over but only on occasion will it seem to "fire". I can smell the > fuel and either does not start it. The spark plugs are firing. The last > time it ran it was running rough, like when the injector connection was > corroded, it corrected it self ran well for a while and then repeated this > untill it was just chugging. Now it won't start. Any ideas as to what it > could be? If you need more info just ask > >
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